Things To Do on an eBike in Pennington County
Pennington County splits into two rider types: a city pathway system with a strict pedal-assist rule, and a rail trail corridor in the Black Hills with a Class 1 rule.
Shops and rentals in Rapid City and Hill City are on the eBike shops in Hill City and eBike shops in Rapid City pages. The routes below start with the rules, because they differ more than the terrain does.
Where to ride in Pennington County
Pennington County has three documented places to ride: the Rapid Creek pathway, the Mickelson Trail at Hill City, and the trail systems on the edge of Rapid City.
Riding in Pennington County, South Dakota.
The Rapid Creek pathway is a paved city greenway, the Mickelson Trail at Hill City is crushed limestone with grades under 4 percent for most of its length, and the Skyline and Buzzards Roost trails are natural-surface mountain bike terrain.
1. Leonard Swanson Memorial Pathway
Rapid City's main greenway follows Rapid Creek through the middle of town and connects Canyon Lake, Sioux Park, Founders Park and the Farmers Market. Elevate Rapid City calls it one of the most used places in the city's park system.
Distance: More than 10 miles; the city's own length is not published on the page we read; start: Any park access along Rapid Creek, such as Canyon Lake or Sioux Park; surface: Paved greenway.
eBike access: Rapid City Code section 12.24.050 allows only low-speed pedal-assist eBikes on the park trail system, so a Class 1 rider is fine and a throttle bike is not. Etiquette and planning: Keep your speed down around walkers and families, and pass only after a clear audible warning. Managing source: Rapid City Code 12.24.050 as compiled by CityRuleLookup.
2. Mickelson Trail at Hill City
The Hill City trailhead sits at milepost 60.1 on the state brochure, roughly 15.6 miles north of the Harbach Park trailhead in Custer and in the heart of the Black Hills. Most of the 109-mile trail stays at or below a 4 percent grade.
Distance: 109 miles end to end; the Hill City to Custer stretch is about 15.6 miles by brochure mileposts; start: Hill City trailhead, milepost 60.1; surface: Crushed limestone.
eBike access: Only Class 1 eBikes are exempt from the trail's motorized vehicle ban under SDCL 41-17-27, and a trail pass costs $5 a day or $20 a year for riders 12 and older. Etiquette and planning: Rental pickup and a one-way shuttle are available in Hill City, and the shuttle's northern trailheads include Deadwood, Englewood, Dumont, Rochford and Mystic. Managing source: South Dakota Game, Fish and Parks, Mickelson Trail policies.
3. Skyline Wilderness Area and Buzzards Roost
Skyline Wilderness Area has 20 named trails on Rapid City's edge, and the Forest Service says Buzzards Roost, about 5 miles west of town, has user-friendly non-motorized trails for mountain bikers, hikers and runners.
Distance: Not published by the managing source; start: Skyline Wilderness Area in Rapid City, or Buzzards Roost west of town; surface: Natural-surface singletrack.
eBike access: The Forest Service treats eBikes as motor vehicles, so they need a local designation on non-motorized trails, and we found none naming Buzzards Roost. The pages we read do not say whether Rapid City's pedal-assist exception reaches Skyline. Etiquette and planning: Call Rapid City Parks and the Black Hills National Forest before taking an eBike on either trail system. Managing source: Black Hills National Forest, Biking.
Planning a Pennington County ride
In Rapid City, rent or bring a Class 1 and ride the Swanson Pathway along the creek. In Hill City, Bicycles & Boats offers a shuttle on Thursday through Sunday to the northern Mickelson trailheads, which lets you ride back toward town.
Half-day and full-day eBike plans
Half day: Ride the Swanson Pathway along Rapid Creek from Canyon Lake to Sioux Park and back on a pedal-assist eBike.
Full day: Pick up a Class 1 rental in Hill City, take the shuttle to a northern Mickelson trailhead, and ride the rail trail back.
What not to ride
Throttle eBikes on Rapid City park trails: The city code covers only pedal assist.
Class II and III on the Mickelson Trail: Only Class 1 is allowed.
Non-motorized forest trails on an eBike: The Forest Service requires a designation for eBikes.
When to ride Pennington County
Cooler months bring quieter trails around Pennington, while midsummer rewards a dawn start and plenty of water.
Shop hubs
2 towns in Pennington County have listings in the directory. A town page gives the address and phone for every shop in that town.
Rental and tour operators
Rental listings follow. Confirm electric models and helmets with the business before you reserve.
Bicycles & Boats Rental🚲 Rentals
Rabbit Bicycles & Repair🚲 Rentals
South Dakota eBike rules snapshot
South Dakota sorts eBikes into three classes in SDCL § 32-20B-9. An electric bicycle is a bicycle or tricycle with a seat or saddle, operable pedals for propulsion, and an electric motor of 750 watts or less. A Class I motor assists only while you pedal and stops assisting at 20 miles an hour. A Class II motor can propel the bike without pedaling and also stops at 20. A Class III motor assists only while you pedal and stops at 28. Since 2020, § 32-20B-10 has required a permanent label showing class, top assisted speed, and motor wattage. Section 32-20B-11 says the motor must disengage when you stop pedaling or apply the brakes, wording that sits awkwardly beside the Class II definition. An electric bicycle is left out of the moped, motorcycle, and off-road vehicle definitions in § 32-20-1.
The path rule is § 32-20B-12. Unless the governmental entity in charge says otherwise, you may ride a Class I or Class II on any bicycle path or multi-use path. A Class III is barred from those paths unless the path is within or next to a roadway or the entity expressly permits it, though a Class III may use a natural-surface trail designated non-motorized if the entity has not restricted it. The George S. Mickelson Trail is stricter. A 2025 law, Chapter 178, amended § 41-17-27 so that only a Class I eBike may use the trail; Class II and Class III are not exempted, and a violation is a Class 2 misdemeanor. Under § 32-20B-13, a Class III operator must be at least 16, though a younger child may ride as a passenger on a Class III built for one. A Class III also needs a working speedometer.
A helmet is required only on a Class III, for operators under 18 and for every passenger of any age (§ 32-20B-14). We found no statewide helmet rule for Class I or II, no eBike driver license, no registration, and no insurance requirement. On the road, a rider going slower than traffic keeps as close as practicable to the right edge (§ 32-20B-5), and a rider on a sidewalk has a pedestrian's duties and must yield and signal before passing. Cities, state parks, and federal land add their own rules. Read our South Dakota eBike laws guide, then check the sign at the trailhead.
South Dakota Game, Fish and Parks manages the Mickelson Trail and Custer State Park trails, and its Mickelson Trail policy page lists electric wheelchairs and Class 1 eBikes as the motorized exceptions. State park pages we read for other areas do not mention eBikes, so ask the park before riding a state park trail.
Federal land follows different rules. The Forest Service manages eBikes as motor vehicles under its travel rules: all three classes are allowed on motorized trails and roads, and a non-motorized trail opens to eBikes only if the local forest designates it. National parks decide for themselves. Look up the specific unit before you load the bike.
Rapid City's rule, at Code section 12.24.050, is narrower than state law. SDCL 32-20B-12 lets Class I and II ride multi-use paths unless the local government says no, and Rapid City has said no to Class II on its park trails. We read the code text through a compilation rather than the city's own site, so confirm with Rapid City Parks.
Frequently asked questions
Does Rapid City ban throttle eBikes on trails?
Its park trail system allows only low-speed pedal-assist eBikes where the motor helps only while pedaling, according to Code section 12.24.050.
How far is Hill City from Custer on the Mickelson Trail?
The brochure mileposts put the Hill City trailhead at 60.1 and the Harbach Park trailhead in Custer at 44.5, about 15.6 miles.
Do Hill City rentals include the trail pass?
Bicycles & Boats says a pass is required for riders 12 and older and is included with its rentals.
Where does the Hill City shuttle go?
The shuttle runs Thursday through Sunday to the northern trailheads, including Deadwood, Englewood, Dumont, Rochford and Mystic.
How long is the Swanson Pathway?
Elevate Rapid City says more than 10 miles along Rapid Creek.
Do kids need a helmet on an eBike in South Dakota?
A child on a Class I or II eBike has no statewide helmet mandate that we could find, but a rider under 18 on a Class III must wear a fitted, fastened helmet under § 32-20B-14. A parent can still insist on one. See the South Dakota eBike laws guide.
Is registration required for an eBike in South Dakota?
We found no registration requirement. A bike that meets § 32-20B-9, with pedals and a motor of 750 watts or less in one of the three classes, is excluded from the moped and motorcycle definitions in § 32-20-1.
All shops in Pennington County
Browse the whole directory, 8 listings across 2 cities, on the Pennington County eBike shops page.